What is the most ridiculous "okay, I guess I'm not gonna be having sex today" experience you've had?

My wife and I were literally in the act, and she suddenly starts laughing - she had a hair tie up her sleeve, and it came out and got stuck inside her. (It was like one of those small metal hair tie - not a huge one, like just 1-2 inches diameter or something - it was up her sleeve, she went to get on top, it came out and it didn't occur to her that it'd fall in the direction it did)<br><br>She had to get a wet paper towel and tuck it up there and pull it out, and we just sort of looked at each other and were like "oh"... <br><br>We were able to laugh about it, but yeah, that was a mood killer.